Installing and configuring Braintree

// the mode of the transaction, either development, integration, sandbox, production, qa (required)
$config[BraintreeConstants::ENVIRONMENT] = '';

// the id of the merchant used (required)
$config[BraintreeConstants::MERCHANT_ID] = '';

// the public key given by the defined merchant account (required)
$config[BraintreeConstants::PUBLIC_KEY] = '';

// the private key given by the defined merchant account (required)
$config[BraintreeConstants::PRIVATE_KEY] = '';

// merchant account id specifying the currency (Marketplace master merchant is used by default)
$config[BraintreeConstants::ACCOUNT_ID] = '';

// merchant account unique identifier (Marketplace master merchant is used by default)
$config[BraintreeConstants::ACCOUNT_UNIQUE_IDENTIFIER] = '';

// defaults to false
$config[BraintreeConstants::IS_VAULTED] = true;

// defaults to false
$config[BraintreeConstants::IS_3D_SECURE] = true;

// fake payment nonces can be used if there are some problems with generated ones. more information: https://developers.braintreepayments.com/reference/general/testing/php#nonce-fake-valid-issuing-bank-network-only-nonce
$config[BraintreeConstants::FAKE_PAYMENT_METHOD_NONCE] = 'fake-valid-mastercard-nonce';

// if generated one does not work (for example there are some problems with braintree/dropin library) it can be directly set here. Valid one can be retrieved from https://braintree-sample-merchant.herokuapp.com/client_token
$config[BraintreeConstants::FAKE_CLIENT_TOKEN] = '';

use Spryker\Yves\StepEngine\Dependency\Plugin\Form\SubFormPluginCollection;
use Spryker\Yves\StepEngine\Dependency\Plugin\Handler\StepHandlerPluginCollection;
use SprykerEco\Yves\Braintree\Plugin\BraintreeCreditCardSubFormPlugin;
use SprykerEco\Yves\Braintree\Plugin\BraintreeHandlerPlugin;
use SprykerEco\Yves\Braintree\Plugin\BraintreePayPalSubFormPlugin;
use Generated\Shared\Transfer\PaymentTransfer;

...


/**
 * @param \Spryker\Yves\Kernel\Container $container
 *
 * @return \Spryker\Yves\Kernel\Container
 */
protected function addSubFormPluginCollection(Container $container): Container
{
    $container[self::PAYMENT_SUB_FORMS] = function () {
        $paymentSubFormPluginCollection = new SubFormPluginCollection();
        $paymentSubFormPluginCollection->add(new BraintreeCreditCardSubFormPlugin());
        $paymentSubFormPluginCollection->add(new BraintreePayPalSubFormPlugin());
        return $paymentSubFormPluginCollection;
    };

    return $container;
}

/**
 * @param \Spryker\Yves\Kernel\Container $container
 *
 * @return \Spryker\Yves\Kernel\Container
 */
protected function addPaymentMethodHandlerPluginCollection(Container $container): Container
{
    $container[self::PAYMENT_METHOD_HANDLER] = function () {
        $paymentMethodHandlerCollection = new StepHandlerPluginCollection();
        $paymentMethodHandlerCollection->add(new BraintreeHandlerPlugin(), PaymentTransfer::BRAINTREE_CREDIT_CARD);
        $paymentMethodHandlerCollection->add(new BraintreeHandlerPlugin(), PaymentTransfer::BRAINTREE_PAY_PAL);
        return $paymentMethodHandlerCollection;
    };

    return $container;
}

$config[OmsConstants::ACTIVE_PROCESSES] = [
    'BraintreePayPal01',
    'BraintreeCreditCard01',
    'BraintreeCreditCard01'
];


$config[OmsConstants::PROCESS_LOCATION] = [
    OmsConfig::DEFAULT_PROCESS_LOCATION,
    APPLICATION_VENDOR_DIR . '/spryker-eco/braintree/config/Zed/Oms',
];


$config[SalesConstants::PAYMENT_METHOD_STATEMACHINE_MAPPING] = [
    \SprykerEco\Shared\Braintree\BraintreeConfig::PAYMENT_METHOD_CREDIT_CARD => 'BraintreeCreditCard01',
    \SprykerEco\Shared\Braintree\BraintreeConfig::PAYMENT_METHOD_PAY_PAL => 'BraintreePayPal01',
];

$container->extend(OmsDependencyProvider::COMMAND_PLUGINS, function (CommandCollectionInterface $commandCollection) {
    $commandCollection
        ->add(new AuthorizePlugin(), 'Braintree/Authorize')
        ->add(new RevertPlugin(), 'Braintree/Revert')
        ->add(new CapturePlugin(), 'Braintree/Capture')
        ->add(new RefundPlugin(), 'Braintree/Refund')
        ->add(new ItemsCapturePlugin(), 'Braintree/ItemsCapture')
        ->add(new OrderCapturePlugin(), 'Braintree/OrderCapture')
        ->add(new ItemsRefundPlugin(), 'Braintree/ItemsRefund')
        ->add(new OrderRefundPlugin(), 'Braintree/OrderRefund') return $commandCollection; });

$container->extend(OmsDependencyProvider::CONDITION_PLUGINS, function (ConditionCollectionInterface $conditionCollection) {
    $conditionCollection
        ->add(new IsAuthorizationApprovedPlugin(), 'Braintree/IsAuthorizationApproved')
        ->add(new IsReversalApprovedPlugin(), 'Braintree/IsReversalApproved')
        ->add(new IsCaptureApprovedPlugin(), 'Braintree/IsCaptureApproved')
        ->add(new IsRefundApprovedPlugin(), 'Braintree/IsRefundApproved');

    return $conditionCollection;
});

protected function getCheckoutPreConditions(Container $container)
{
    return [
        ...
        new BraintreeCheckoutPreConditionPlugin(),
    ];
}

protected function getCheckoutOrderSavers(Container $container)
{
    return [
        ...
        new BraintreeCheckoutDoSaveOrderPlugin(),
    ];
}

protected function getCheckoutPostHooks(Container $container)
{
    return [
        ...
        new BraintreeCheckoutPostSavePlugin(),
    ];
}